Plastic optical components
First Claim
Patent Images
1. A plastic optical component comprising:
- a main body; and
a transparent moisture-proof coating provided on all surfaces of said main body, said moisture-proof coating satisfying the following relation (1);
(D1/d)×
(L/D2)<
10
(1)where D1 (mm2/s) is a water diffusion coefficient of a first material of which said moisture-proof coating is made, d (mm) is a thickness of the first material, D2 (mm2/s) is the water diffusion coefficient of a second material of which said main body is made, and L (mm) is an average thickness across an optical surfaces of the second material.
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Accused Products
Abstract
The plastic optical component includes a main body and a transparent moisture-proof coating provided on all surfaces of the main body, the moisture-proof coating satisfying the following relation (1):
(D1/d)×(L/D2)<10 (1)
where D1 (mm2/s) is a water diffusion coefficient of a first material of which the moisture-proof coating is made, d (mm) is a thickness of the first material, D2 (mm2/s) is the water diffusion coefficient of a second material of which the main body is made, and L (mm) is an average thickness across an optical surfaces of the second material.
13 Citations
3 Claims
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1. A plastic optical component comprising:
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a main body; and a transparent moisture-proof coating provided on all surfaces of said main body, said moisture-proof coating satisfying the following relation (1);
(D1/d)×
(L/D2)<
10
(1)where D1 (mm2/s) is a water diffusion coefficient of a first material of which said moisture-proof coating is made, d (mm) is a thickness of the first material, D2 (mm2/s) is the water diffusion coefficient of a second material of which said main body is made, and L (mm) is an average thickness across an optical surfaces of the second material. - View Dependent Claims (2, 3)
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Specification
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Current AssigneeFujifilm Corporation (Fujifilm Holdings Corporation)
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Original AssigneeFuji Photo Film Co Limited (Fujifilm Holdings Corporation)
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InventorsEiha, Noriko, Kido, Takeo, Suzuki, Fumiyuki, Mochizuki, Tadashi
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Primary Examiner(s)Sugarman, Scott J.
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Assistant Examiner(s)Collins, Darryl J.
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Application NumberUS11/009,095Publication NumberTime in Patent Office491 DaysField of Search359/642, 359/831, 359/838, 359/885, 359/893, 359/894, 359/515, 359/507, 359/514, 359/513US Class Current359/642CPC Class CodesG02B 1/18 Coatings for keeping optica...
